Hand-level.



CHARLES FLINT, OF SPOKANE, WASEINGTGN.

nenn-LEVEL.

' Applcationliled April 26, 1916.l

To all whom it' lmay concer/n.'

Be it known that l, CnAnLEs FLINT, citizen of the United States, residing at Spokane, in the county of Spokane and State of llashington, have invented certa-in new and useful Improvements in Hand-Levels, ot which the following is a specification.

This invention relates to new and usefulj estimation of yardage 'for excavation work and the like.

A 'further ohJect of the invention resides in providing an improved level which 1s provided with eXpansihle ends so that the sanie may he made in pocketsize and eapehle ot extension for accurate work.

Another object of the invention resides in providing an improved indicator therefor fapable of being read from various positions and provided with means Yt'or locking;r the saine against movement when the device is not in use.

A still further object resides in iiroviding a device which is simple and durablein construction, inexpensive to manufacture and one which will be very eliicient and useful in operation.

lith these and other objects in View my invention consistr1 in the novel ieetnres of construction, cor tion and arrangement oli parts, as will he hereinafter referred to and nioreparticularly pointed out in the spr ilicntion.

ln the accompanying drawings forming' a part of this application Figure 'l is a. side elevation partly in section showing clearlyI the indicator applied Fig. fl is e. top plan view t. eel

5 is a side elevation di .osing the ex pensible ends in extended p tion;

Fig. 6 is a perspective View oi one of the ends removed;

551g. Z 1s a perspective vnu.v

the indicator casing removed;

Spec'ication of Letters Patent.

lotented Mar.. i3, 193W..

Serial Noi $3,669.

8 is a detailed section showing the locking means for the indicator;

Fig. 9 is an end elevationvot' the device;

Fig'. l0 is a vertical transverse section as seen on the line 10-l0 of Fig. 5; and

Fig. ll is a similar view as Secn'on the line ll-ll ot' Fig. 5.

ln describing' the invention, l shall refer-` to the drawings in which similar reference characters designate corresponding` parts throughout the several views and in which l designates a body having; longitudinal slots i2 and therein projecting from c posite ends in which lit the weh-like p minis of the sliding and expansihle end sections l and 5 respectively. The slots and 3 are somewhat irregular in design` as clearly shown in Figs. lO and l1 of the drawings and the weh-portions of said expansihle end sections are designed in cross section ro conform thereto, und each end section is further provided with a dove-tail rih 6 which lits in the dove-tail slot 7 in the nieinoer l.

ll/lounted in an opening 8 in the central portion of the body l is a casing 9 which contains the indicutoras will he described presently. hlounted. in this casingh ere two opposed faces or dials l0 which lieve scales arranged in arcs of i200 degrees or over and properly l graduated. disks or faces l() are beveled inwardly and also graduated as shown at ll whereby the indicator may be read 'from various'angles above the level proper. A pendulumdilte indicator l2 is provided, the saine i' fulu vcruined intermediate, of its ends between end :i thuinh screw le is provided which" operates in athreaded opening in the front Wall of a casing 9 et the lower portion' of the latter` the extreme inner end of said screwl being: provided with a cone-shaped head piece lG. A fulcrurned locking meinloer orlatch 17 is provided within the-casing.,r 9 just below the lower portion of the indicator 1Q, as shown in Fig. 8 of the dreivings, saine being normally held out of en The edges of theselill@ lio he received in groove 2l g f l h d1 vrane o. san. .o j.

vcone head 16 of the screw 15 is adapted for engagemeni Willi Vone end of lle member if( whereby o more said ylatter member on itsfnlcrum poin against the tension of the spring, i8 end cause seid member to cona'o Wih lie. member 12, 'thus looking the latter against vmonfl-iuiem- @n one end of the body l is provided an auxiliary or secondary level. which consists of en erin li) pifoedas :it .20 and adapted in onemside The inner pivoeflwend of said auxiliary level is provided Wilh a head or the like 22 which has degree divisions thereon cooperating with a me le on the body l. The ooperation of the mein level and the secondary level will eil'eot 'a grezzi, saving in time and labor for certain classes of Work suohvas in he estimation of yardage for excavation Work. The level proper may be sei lwith the grade or slope upon which a cuil is to he made while he secondary level may be set level and used as n sight to seein-ea. point that will give the leg of the triangle upon which excam tion esfiinaes are being made.- lt is also necessary a4; times to ob'ain a particular angle both ahore and belowv the base position and in such an instance, a reading niej; he 1kaken on he indicator and by reading lie angle of a secondary leve?, the proper wiener;

engleniay he obtained either Wih respec to the horizontal, or to the 'Whole angle.

l will he seen from the foregoing thai, I

have provided a wfery eiiioientdevice 'lor- Changes in the forni, proportion and in the minor details oi construction may he resorted to, without departing from the spirit or sacrificing any of the principles or" the* invention.

1Having thus described. my invention, what l claim and desire to secilre by Letters Patent, iszl f In a level oi the class described, a stock, a'pendnlinn-lile indioaor pivoted intermediate of its ends within said stock, e looking mechanism for said indicator comprising a spring eontrolled uloruined latchmember normally held outof engagement thermriih, and means for manually disposing' said lorhing meohanisniin its engag,L ing position, aid means oonsisingof' e thnnilvsorew provided with a oone-shaped head-piece adapted to engage said latchineinhei:

ln testimony whereof l ailiX my signature.

ennemie rimini, 

